Condenser is High side pressure. Relief on r-134a is usually 380 PSI.
Working pressures on the car are in the 150 to 200 PSI range with excursions into 300 psi not unusual.
You can't check it well with an air compressor.
Make sure your connections are TIGHT.
Also, if the system has been discharged a while, the filter drier is probably saturated and will fall apart under use. While your friend may have been ok, your mileage may vary. If the dessicant gets loose in the system, it will clog all orifices and the evaporator. Effectively destroying the system.
Pulling a dehydrating vacuum is always a good idea.
My name is Richard. I was a Contouraholic.
NOW: '02 Mazda B3000 Dual Sport, Black
BEFORE: '99 Contour SE Sport
Duratec ATX Spruce Green
PIAA 510's, Foglight MOD, K&N Drop-in
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